Mobile traffic signal



FIG. 1 is a perspective view of a mobile traffic signal showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a side elevational view thereof in the collapsed position;

FIG. 7 is a front elevational view of a second embodiment of my new design, the second embodiment differing from the first only in the shape of the top signal light casing. 

The ornamental design for a mobile traffic signal, as shown and described. 